Grundig Toronto 32-79232 T - GBH173 How to enter the service mode – default data values - SMPS schematics

Grundig - Vision 4 - 26-4940 T - GBH3626; 32-4840F T - GBH3532; 32-4940 T - GBH3632; 37-4940 T - GBH3637

Vision 6 - 32-6950 T - GBH4832; 37-6950 T - GBH4837; 42-6950 T - GBH4842

Service mode and Special Functions

i - call up/exit the dialog center/exit the service mode.

Up/Dn – call up the dialogue line.

OK  - call up the menus.

+/--  - changing settings.

Z  - sub menu: back to main menu

 Main menu: exit the service mode.

Calling up the Service Mode

Press button " i " (INFO)

Enter the code number "8500”

Exit the Service Mode

Press button " i "

Basic Settings [Default data]

Software Version Number
The software version number is shown on the lower part of the service menu and of the options, e.g

Channel Search
– Press button " i " (MAIN MENU)

– Select "CHANNEL SETUP" with the buttons "+ / –" and confirm with button "OK" ( ).
– Select "Auto Tuning" with the buttons "Up/Dn" and confirm with button "+"

– Select the required Country with the buttons "+ / –".
– Select "Scan Type" with the buttons "Up/Dn" and adjust with buttons "+ / –".

– Select "Time Zone" with the buttons "Up/Dn" and adjust with button "+ / –".
– Start "Channel setup" with the button "OK"
The auto programme system stops at every station of acceptable reception quality (AFC and coincidence) and stores the station data and the respective standard automatically. The system then continues searching.

Pressing the " i " button stops the programme search.

Hotel Mode
Maximum volume is limited and it is no access to "Setup" at activated hotel mode.

Call up: i >  "8500" > "OPTION 1" > "OK"  > "Hotel" > 12 "AVAIL"

Maximum volume: i > "8500" > "OPTION 1" > "OK"  >  "Hotel Volume" > 12Wert 0…63

Standby power schematic

Main power supply FSP2223-3F01

Main board

Main Power Supply FSP337-3F01, FSP361-3F01